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    <script>
        // 玫瑰班有56名小朋友，其中男生占比23%，请问女生有多少人
        var male,female
        var num=56
        male=num*0.23
        female=num-male
        // console.log(female)
    </script>
    <script>
        // 设有一个圆，半径为80，求面积和周长  πd  πr^2
        var p=3.14
        var r=80
        var peri=r*2*p; console.log(peri)
        var area=p*r**2; console.log(area)
    </script>
    <script>
        // 将90度的角度转为弧度
        var deg=90
        // var rad=deg/180*p;console.log(rad)
    </script>
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